EP3237567A1 - Adhésif de finition de joints - Google Patents

Adhésif de finition de joints

Info

Publication number
EP3237567A1
EP3237567A1 EP15828800.1A EP15828800A EP3237567A1 EP 3237567 A1 EP3237567 A1 EP 3237567A1 EP 15828800 A EP15828800 A EP 15828800A EP 3237567 A1 EP3237567 A1 EP 3237567A1
Authority
EP
European Patent Office
Prior art keywords
amount
adhesive composition
gum
composition
adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15828800.1A
Other languages
German (de)
English (en)
Other versions
EP3237567B1 (fr
Inventor
Robert H. Negri
Donghong Li
Rafael Bury
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United States Gypsum Co
Original Assignee
United States Gypsum Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United States Gypsum Co filed Critical United States Gypsum Co
Priority to PL15828800T priority Critical patent/PL3237567T3/pl
Publication of EP3237567A1 publication Critical patent/EP3237567A1/fr
Application granted granted Critical
Publication of EP3237567B1 publication Critical patent/EP3237567B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/18—Polyesters; Polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J129/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers
    • C09J129/02—Homopolymers or copolymers of unsaturated alcohols
    • C09J129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J131/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
    • C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C09J131/04—Homopolymers or copolymers of vinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/042—Joint tapes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0891—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with joint fillings
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2405/00—Presence of polysaccharides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2429/00—Presence of polyvinyl alcohol
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2431/00—Presence of polyvinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer

Definitions

  • This invention relates to construction materials and building construction methods. It provides adhesive formulations suitable for fortifying joints between abutting panels in wall and ceiling assemblies. Methods also provided for using the adhesive formulations with joint seams, joint reinforcement tape, joint reinforcement trim and framing members. BACKGROUND OF THE INVENTION
  • claddings are used as panels for forming interior and exterior wall and ceiling surfaces.
  • the claddings are in the form of boards (also referred to as panels) affixed to framing members such as in balloon framing arrangements known in the art.
  • claddings include gypsum board faced with paper, fibrous mats (e.g., fiberglass), and the like. These and other types of boards are typically cut to appropriate dimensions and then fastened to framing members, e.g., with screws, nails, or the like to form wall sections formed from multiple boards.
  • joint reinforcement tape is embedded in the seam, along with a layer of joint compound under the tape, and multiple coats of joint compound applied over the tape. Some boards meet at an angle such as when forming a corner.
  • Reinforcement bead can be utilized to hide the corner seam and to protect the corner. Reinforcement bead can be directly attached to the board using fasteners, or a layer of joint compound is applied under the trim to adhere the reinforcement bead to the board. The installed reinforcement is then concealed with multiple layers of joint compound applied over the trim. Fasteners used to affix the board to framing members must also be concealed with multiple layers of joint compound applied over them. After the various joint compound applications are dried, the resulting wall surfaces can be sanded and painted to form the desired uniform and aesthetically pleasing appearance.
  • the level of finishing as described above can vary.
  • six (6) levels of gypsum board finish are understood in the art, ranging from zero (no treatment at all) to level five (the highest level of finish), as set forth in Gypsum Association document GA-214 and American Society for Testing and Materials (“ASTM”) C840.
  • the level of finish generally corresponds with the number of applications of joint compound to seams, trims, and fasteners. Levels three, four, and five are typically used for occupied spaces within buildings. For single family homes, level 4 is the most common level that is implemented. Level five is less frequently used and usually requires application of a skim coat of joint compound across the entire wall surface.
  • Each layer of joint compound can require about a day to dry, and it typically can take about a week to install the gypsum board and finish the flat joints, fasteners, and corner trims for a typical new construction of a home of 2,400 square feet of living space (corresponding to about 10,000 square feet of board).
  • US Patent Publication US-2014-0083038-A1 describes a joint compound and wall assembly in which a joint compound can be applied in one layer only. This system eliminates the need for applying multiple coats of joint compound and decreases the time needed for wall installation.
  • the adhesive composition comprises a polymeric binder, filler and thickener, wherein the binder is selected from acrylic acid polymers, acrylic acid copolymers, alkyds, polyurethanes, polyesters, epoxies, and combinations thereof and wherein the viscosity of the composition is the range from 100 to 200 Bradbender Units and density is in the range from about 7.5 lbs/gal to about 10 lbs/gal.
  • the binder is selected from acrylic acid polymers, acrylic acid copolymers, alkyds, polyurethanes, polyesters, epoxies, and combinations thereof and wherein the viscosity of the composition is the range from 100 to 200 Bradbender Units and density is in the range from about 7.5 lbs/gal to about 10 lbs/gal.
  • the adhesive composition is formulated with a binder is selected from the group consisting of polyvinyl acetate (PVAc), polyvinyl alcohol (PVOH) and a combination of polyvinyl acetate with polyvinyl alcohol.
  • PVAc polyvinyl acetate
  • PVOH polyvinyl alcohol
  • the amount of the binder is from 10% to 40% by weight on a solids basis of the wet composition.
  • the adhesive composition comprises a filler selected from the group consisting of gelling clays, delaminating clays and any combination thereof.
  • the filler is selected from the group consisting of kaolin clay, attapulgite clay, and any combination thereof.
  • the filler is a combination of kaolin clay in the amount from 5% to 15% and attapulgite clay in the amount from 0.5% to 1 .5% by weight.
  • the rheological modifier can be selected from the group consisting of hydrophobically modified ethoxylated urethanes (HEUR), hydrophobically modified alkali-swellable emulsions (HASE), styrene-maleic anhydride terpolymers (SMAT), hydroxyethyl cellulose (HEC), ethylhydroxyethyl cellulose (EHEC),
  • HEUR hydrophobically modified ethoxylated urethanes
  • HASE hydrophobically modified alkali-swellable emulsions
  • SMAT styrene-maleic anhydride terpolymers
  • HEC hydroxyethyl cellulose
  • EHEC ethylhydroxyethyl cellulose
  • MHEC methylhydroxyethyl cellulose
  • CMC carboxymethyl cellulose
  • HPMC hydroxypropylmethyl cellulose
  • alkyl hydroxypropyl cellulose ethers alkyl hydroxypropyl cellulose ethers, hydroxypropyl methyl celluloses, xanthan gums, alginates, carrageenans, gum arabic, gum karaya, gum tragacanth, gum ghatti, guar gum, locust bean gum, tamarind gum, psyllium seed gum, quince seed gum, larch gum, pectin and its derivatives, dextrans, hydroxypropylcelluloses, and any combination thereof.
  • Some adhesive compositions are prepared with at least one hydroxyethyl cellulose based rheological modifier and at least one polyacrylate based associative thickener.
  • the adhesive composition may further comprise at least one of the following: a coloring agent, a foaming agent, a defoaming agent, a buffering agent, an anti-sedimentation agent, wetting agent, plasticizer and a dispersant.
  • One of the embodiments provides the adhesive composition, wherein the binder is a combination Polyvinyl Acetate/Polyvinyl Alcohol in an amount from 10% to 40% by weight, the filler is a combination of attapulgite clay in an amount from 0.5% to 1 .5% by weight and kaolin clay in an amount from 5% to 15% by weight, the rheological modifier is in an amount from 0.01 % to 5% by weight, and wherein the composition further comprises a thickener in an amount from 0.01 % to 5% by weight, a surfactant in an amount from 0.01 % to 1 % and a defoamer in an amount from 0.01 % to 1 %.
  • the binder is a combination Polyvinyl Acetate/Polyvinyl Alcohol in an amount from 10% to 40% by weight
  • the filler is a combination of attapulgite clay in an amount from 0.5% to 1 .5% by weight and kaolin clay in an amount from 5% to 15% by weight
  • the rheological modifier is
  • the adhesive composition is also applied to the framing member.
  • the adhesive composition can be applied to the back side of a joint reinforcement tape and/or reinforcement trim, which is then placed over and bonded to a joint seam.
  • Fig. 1 depicts a schematic of Maxwell's spring and dashpot model.
  • Fig. 2 is a graph of viscosity rates during shear rate ramp (left) and shear rate jump (right).
  • Fig. 3A is a plot of storage and loss moduli in a strain sweep test.
  • Figs. 3B-3E are plots of storage and loss moduli are plots of storage and loss modulus during a frequency sweep test.
  • Fig. 4 depicts response results of various adhesives to a sudden jump in shear rate from 100 1/s to 0.1 1/s. Only the viscosity at 0.1 1/s is shown.
  • Fig. 5 depicts storage and loss modulus results obtained during the strain sweep test and corresponding to the linear viscoelastic region of Table 3.
  • Fig. 6 depicts storage and loss modulus values at 10 Hz collected during the frequency sweep test (Table 3).
  • This invention comprises an adhesive composition useful in a joint finishing process to affix and install joint reinforcement tape, trim, and/or other types of material to conceal the joint seam.
  • This adhesive is compatible with a great variety of joint compounds and wall installation systems, including such joint compounds and wall assemblies as provided in US Paten PublicationUS-2014- 0083038-A1 .
  • the adhesive composition is formulated to impart unique physical properties designed to provide rheological control as a yield stress fluid that is both a semi-solid and liquid material dependent on the shear stress conditions, a unique wet tack property during installation process, a long open time to execute a practical workable range during installation, yet this adhesive provides a fast drying
  • the adhesive enables efficient and effective installation when delivered to the intended surface using any variety of methods such as brush, roller, spray, or other mechanical apparatus or tool used in the trades, such as an automatic taping tool or manual hopper devices (commonly referred to as "banjo" or hopper coating device).
  • methods such as brush, roller, spray, or other mechanical apparatus or tool used in the trades, such as an automatic taping tool or manual hopper devices (commonly referred to as "banjo" or hopper coating device).
  • a mechanical taping tool apparatus designed to accurately dispense an adhesive that is evenly distributed across the joint reinforcement tape may be employed.
  • Other methods and tools to deliver the adhesive to the wall can be also used.
  • the adhesive acts to mechanically bond or bind the joint reinforcement tape to abutting gypsum panels over the joint seam to resist physical separation.
  • the adhesive further serves to assist the joint reinforcement tape in providing, in part, a crack resistant joint system by evenly distributing stress more efficiently across the joint seam.
  • the wet applied adhesive converts to a solid film through evaporation of water.
  • Embodiments include several adhesive base formulations that could be dispensed through tool(s).
  • a stable, low yield stress fluid imparts a hysteresis characteristic.
  • the adhesive exhibits a desired strain sweep that imparts the Theological behavior from a shear thinning fluid with rapid recovery to a semi-solid state.
  • the composition of the adhesive is a low solids, high shrinkage, water based latex dispersion.
  • the adhesive imparts certain other physical properties and provides significant open time and workability of 30 minutes or more to enable practical installation under typical jobsite construction conditions, yet when the adhesive sets into place following the taping operation dries or cures in about 10 minutes or less after installation.
  • a benefit to providing a rapid dry/cure property enables faster completion of a joint finishing system.
  • the adhesive possesses a resistance softening or re-emulsifying when rewet with water and/or other aqueous based materials.
  • the adhesive formulation acts as a bonding agent or binding glue and this composition is also suitable for application in areas exposed to higher humidity.
  • the adhesive can be applied to framing members to minimize the number of fasteners used to hang a board.
  • the adhesive can also be used to facilitate application of joint reinforcement tape and reinforcement trim.
  • the adhesive is applied on the back side of joint reinforcement tape which is then placed over and bonded to a joint seam of two adjacent boards. In other embodiments, the adhesive is applied on the back side of a reinforcement trim which is then placed over and bonded with the adhesive to a joint seam of two adjacent boards.
  • the adhesive can be applied with any joint reinforcement tape or reinforcement trim including those that comprise, consist of, or consist essentially of paper face comprising non-swelling synthetic paper facing material and a backing.
  • the facing material can be laminated to a sturdy, rust-resistant material designed to impart superior long term corner angle joint reinforcement that exceeds the minimum performance requirements established in ASTM C1047-10a (Standard Specification for Accessories for Gypsum Wallboard and Gypsum Veneer Base) for crack resistance and chipping, resulting in corner vertex that remains straight during normal building movement and/or displacement and daily wear-and- tear.
  • the backing comprises metal such as galvanized steel and/or other backing material having the aforesaid desired properties, including, for example, composite laminate structure, layered paper, thermoplastic, thermoset, carbon fiber, polyester, polycarbonate, spun polyolefin, natural or synthetic fiber, woven material, and the like.
  • the invention provides a method of treating a wallboard assembly of two adjacent boards joined by a seam.
  • the method comprises, consists of, or consists essentially binding a joint tape with the adhesive to a wallboard and applying at least one coat of a joint compound composition over the joint tape.
  • the adhesive comprises a polymeric binder, filler and thickener.
  • Suitable binders are selected from acrylic acid polymers, acrylic acid copolymers, alkyds, polyurethanes, polyesters, epoxies, and combinations thereof.
  • Particularly preferred binders include polyvinyl acetate (PVAc), polyvinyl alcohol (PVOH) and a combination of polyvinyl acetate with polyvinyl alcohol.
  • the binder generally can be any suitable film- forming resin (or combinations thereof) capable of forming a solid film and binding solid materials to the surface to which the joint compound composition is applied.
  • the binder can be an acrylic acid polymer and/or acrylic acid copolymer in some embodiments.
  • the binder is in the form of an aqueous emulsion in some embodiments, with suitable latex emulsion media including, but not limited to, acrylics, such as, for example, vinyl acrylics and styrenated acrylics.
  • suitable binder materials include acrylic latex, vinyl-acrylic, vinyl acetate, polyurethane, and/or combinations thereof.
  • the binder can be included in the adhesive composition in any suitable amount.
  • the binder can be included in an amount from about 5 wt.% to about 100 wt.% by weight (on a solids basis) of the wet composition, such as from about 10 wt.% to about 50 wt.%, from about 10 wt.% to about 40 wt.%, from about 20 wt.% to about 50 wt.%, from about 20 wt.% to about 80 wt.%, from about 30 wt.% to about 70 wt.%, from about 40 wt.% to about 60 wt.%, etc.
  • Suitable binders include at least one of the following binder or a combination at least two of such binders available from Celanese, Inc. : RESYN 107 (polyvinyl acetate/dextrin), DUR-O-SET E-130 (polyvinyl acetate/polyvinyl alcohol), RESYN SB-321 (polyvinyl acetate/HEC), TurCOR 3025 (polyvinyl acetate/ polyvinyl alcohol).
  • Other suitable binders include SELVOL 09-325 (polyvinyl alcohol) and SELVOL 21 -205 (polyvinyl alcohol) available from Sekisui, Inc.
  • the adhesive comprises at least one filler.
  • Suitable fillers include clay fillers. Suitable clay fillers include gelling clays, delaminating clays and any combination thereof. Suitable gelling clays include attapulgite clay. Suitable delaminating clays include kaolin clay. In some embodiments only a gelling clay is used. In other embodiments only a delaminating clay is used. In further
  • a combination of at least one gelling clay and at least one attapulgite clay is used.
  • the total amount of clay in the adhesive formulation varies. In some embodiments up to about 40 wt.% of clay can be included. In some embodiments, the clay can be present, for example, in an amount of up to about 35 wt.%, up to about 30 wt.%, up to about 25 wt.%, up to about 20 wt.%, up to about 15 wt.%, up to about 10 wt.%, up to about 5 wt.%, or up to about 1 wt.% added based on the weight of the wet composition.
  • Each of the aforementioned endpoints can have a lower limit, e.g., ranging from 1 wt.%, 5 wt.%, 10 wt.%, 15 wt.%, 20 wt.%, 25 wt.%, 30 wt.%, or 35 wt.%, as numerically appropriate.
  • the clay is kaolin clay. In other embodiments, the clay is attapulgite clay. In further embodiments, the clay is a combination of kaolin clay and attapulgite clay.
  • the total amount of clay may be in the range 1 -40 wt%, 1 - 30 wt%, or 1 -20 wt%.
  • the total amount of kaolin clay may be in the range 5-30 wt%, 5-20 wt%, or 5-15 wt%.
  • the total amount of attapulgite clay may be in the range 1 -10 wt%, 1 -5 wt%, 1 -2.5 wt%, or 0.5-1 .5 wt%.
  • the adhesive formulation further comprises a rheological modifier.
  • Suitable rheological modifiers include, but are not limited to, cellulosic and associative thickeners, including but limited to, hydrophobically modified ethoxylated urethanes (HEUR), hydrophobically modified alkali-swellable emulsions (HASE), and styrene-maleic anhydride terpolymers (SMAT), and/or combinations thereof.
  • HEUR hydrophobically modified ethoxylated urethanes
  • HASE hydrophobically modified alkali-swellable emulsions
  • SMAT styrene-maleic anhydride terpolymers
  • Exemplary cellulosic rheological modifiers include, but are not limited to, cellulose ethers such as hydroxyethyl cellulose (HEC), ethylhydroxyethyl cellulose (EHEC), methylhydroxyethyl cellulose (MHEC), carboxymethyl cellulose (CMC),
  • HPMC hydroxypropylmethyl cellulose
  • alkyl hydroxypropylmethyl cellulose
  • hydroxypropyl cellulose ethers hydroxypropyl methyl celluloses, as well as xanthan gums, sodium alginates and other salts of alginic acid, carrageenans, gum arabic (mixed salts of arabic acid), gum karaya (an acetylated polysaccharide), gum tragacanth (a complex mixture of acidic polysaccharides), gum ghatti (the calcium and magnesium salt of a complex polysaccharide), guar gum (a straight chain galactomannan) and its derivatives, locust bean gum (a branched galactomannan), tamarind gum, psyllium seed gum, quince seed gum, larch gum, pectin and its derivatives, dextrans, and hydroxypropylcelluloses, or any combination thereof.
  • gum arabic mixed salts of arabic acid
  • gum karaya an acetylated polysaccharide
  • gum tragacanth a complex mixture of acid
  • the Theological modifier can be included in any suitable amount, e.g. , to achieve a desired viscosity.
  • the Theological modifier is included in an amount from about 0.01 % to about 15%, by weight of the wet composition, such as from about 0.01 % to about 10%, from about 0.01 % to about 5%, from about 0.1 % to about 5%, from about 0.1 % to about 3%, from about 0.1 % to about 2%, or from about 0.1 % to about 1 %.
  • the joint compound typically comprises from about 0.01 wt.% to about 10 wt.%, about 0.1 wt.% to about 5.0 wt.%, and/or about 0.10 wt.% to about 3.0 wt.% of the cellulosic thickener.
  • An exemplary hydroxyethylcellulose rheological modifier includes NATROSOL®
  • the adhesive composition may further comprise an associative thickener.
  • suitable associative thickeners include acidic acrylate copolymers (cross- linked) of ethyl acrylate and methacrylic acid, and acrylic terpolymers (cross-linked) of ethyl acrylate, methacrylic acid, and nonionic urethane surfactant monomer.
  • the adhesive composition can comprise from about 0.01 wt.% to about 10 wt.%, from about 0.01 wt.% to about 5 wt.%, from about 0.1 wt.% to about 5.0 wt.%, and/or about 0.1 wt.% to about 3 wt.% of the associative thickener.
  • Useful associative thickeners include a hydrophobically modified crosslined polyacrylate powder marketed under the CARBOPOL® trade name (Lubrizol, Inc.).
  • the adhesive composition comprises at least one hydroxyethyl cellulose based rheological modifier and at least one polyacrylate based associative thickener. In some embodiments, the adhesive composition comprises at least one hydroxyethyl cellulose based rheological modifier in the amount from 0.01 to 20 wt%, and at least one polyacrylate based associative thickener in the amount from 0.01 to 20 wt%.
  • the adhesive composition also comprises at least one surfactant.
  • the surfactant can be a surfactant having a hydrophilic-lipophilic balance (HLB) from about 3 to about 20, such as from about 4 to about 15 or from about 5 to about 10.
  • HLB hydrophilic-lipophilic balance
  • the surfactant can be present in any suitable amount, such as from about 0.001 % to about 15% by weight of the wet composition, such as from about 0.001 % to about 10%, from about 0.001 % to about 5%, or from about 0.01 % to about 0.5%.
  • the adhesive composition may further comprise at least one dispersant.
  • Suitable dispersants include amine based dispersants such as a multifunctional amine marketed under the AMP® trade name (Angus, Inc.).
  • the adhesive composition may further comprise at least one humectant.
  • Any suitable humectants can be included, such as, for example, sorbitol derivatives, polyhydric alcohols, including but not limited to glycols such as ethylene glycol, diethylene glycol (DEG), triethylene glycol, propylene glycol, di-propylene glycol, and/or tri-propylene glycol, glycerol or any combination thereof.
  • the humectants can be included in an amount from about 0.001 % to about 15% by weight of the wet composition, such as from about 0.001 % to about 10%, from about 0.01 % to about 5%, or from about 0.001 % to about 3%.
  • the adhesive composition has a pH in the range from about 7.0 to about 12. In some embodiments, the adhesive composition has a pH in the range from about 8.0 to about 12. In some embodiments, the adhesive composition has a pH in the range from about 9.0 to about 12.
  • a variety of basic materials may be used in the adhesive composition to adjust the pH as needed.
  • Such basic compounds include, but are not limited to ammonia, caustic soda (sodium hydroxide), tri-ethylamine (TEA), and 2-amino-2- methyl-1 propanol (AMP).
  • the adhesive composition comprises about 0.001 wt.% to about 10 wt.%, about 0.01 wt.% to about 0.5 wt.%, and/or about 0.01 wt.% to about 0.50 wt.% of the alkaline/basic material.
  • the adhesive composition further comprises a biocide in any suitable amount, e.g. , from about 0% to about 5% by weight of the wet composition, such as from about 0.05% to about 2%, from about 0.1 % to about 1 .5%, from about 0.1 % to about 1 %, or from about 0.1 % to about 4%.
  • the biocide comprises a
  • the adhesive composition may further comprise at least one of the following: a coloring agent, a foaming agent, a defoaming agent, a buffering agent, an anti-sedimentation agent, wetting agent, plasticizer and a dispersant.
  • the adhesive composition is formulated to have a viscosity when wet from about 100 Brabender units (BU) to about 700 BU, such as from about 100 BU to about 600 BU, about 100 BU to about 500 BU, about 100 BU to about 400 BU, about 100 BU to about 300 BU, about 100 BU to about 200 BU, about 130 BU to about 700 BU, about 130 BU to about 600 BU, about 130 BU to about 500 BU, about 130 BU to about 400 BU, about 130 BU to about 300 BU, about 130 BU to about 200 BU, about 150 BU to about 700 BU, about 150 BU to about 600 BU, about 150 BU to about 500 BU, about 150 BU to about 400 BU, about 150 BU to about 300 BU, or about 150 BU to about 200 BU.
  • BU Brabender units
  • the viscosity is measured according to ASTM C474-05, Section 5 using a CW Brabender viscometer with a Type-A Pin, sample cup size of 1 /2 pint with a 250 cm-gm cartridge Brabender Torque-Head and an RPM of 75.
  • the adhesive composition is formulated to have a density when wet from about 2 lbs/gal to about 20 lbs/gal, such as from about 2 lbs/gal to about 17 lbs/gal, from about 2 lbs/gal to about 15 lbs/gal, from about 2 lbs/gal to about 10 lbs/gal, from about 2 lbs/gal to about 7.5 lbs/gal, from about 5 lbs/gal to about 20 lbs/gal, from about 5 lbs/gal to about 15 lbs/gal, from about 5 lbs/gal to about 10 lbs/gal, or from about 7.5 lbs/gal to about 10 lbs/gal.
  • the adhesive composition provides many advantages such as it can flow through an automatic taping tool and it contributes only minimally to the dry film thickness. There is no swelling or lifting upon re-wet or when exposed to cyclic humid conditions. There is a sufficient open time for repositioning.
  • the adhesive composition does not dry on tools and it is easy to clean up with water.
  • the adhesive composition is compatible with joint compounds and it does not negatively affect the drying time and gloss/sheen of regular primer/finish coatings.
  • the adhesive composition is formulated with at least the following ingredients as provided below.
  • the adhesive composition of Table 1 is formulated with water to achieve the density in the range from about 7.5 lbs/gal to about 10 lbs/gal and viscosity in the range from 100-200 Brabender Units.
  • Additional components include but are not limited to, a coloring agent, dispersant, humectant and a biocide are added.
  • composition is adjusted to be in the range 7-10.
  • each of the seven formulations (C1 through C7) were compared in a paper bonding test.
  • each adhesive sample was applied on a piece of a wallboard, and joint paper tape was applied over it, followed by the application of a joint compound over the tape. The samples were allowed to dry overnight. The bonding strength of each of the adhesive formulations was evaluated by pulling out the bonded joint paper tape from the wallboard.
  • Rheological characterization of the adhesive composition can be achieved by conducting various tests such as shear rate ramp, shear rate jump, strain sweep and frequency sweep. These tests were employed to characterize the rheological properties of the present joint finishing adhesive compositions.
  • the present adhesive composition formulated in accordance with Table 1 has a relatively fast response time to sudden changes in shear rate as well as has a unique combination of a high storage modulus and a low loss modulus.
  • the controlled shear rate ramping test illustrates that the adhesive composition IC recovers its full viscosity much more rapidly than the other two highly viscous adhesives used in test for a comparative purpose.
  • the strain sweep test illustrates that the adhesive composition IC possesses a combination of both high storage modulus and low loss modulus.
  • the frequency sweep testing illustrates that the adhesive composition IC has a storage modulus between the highly elastic and very low elastic fluids, while imparting a loss modulus similar to the low viscosity group comparative compostions.
  • Example 1 Rheological Characterization of the Adhesive Composition
  • the shear rate ramp test ramped approximately from 0.2 1 /s to 400 1/s and then from 400 1 /s to 0.2 1 /s. The duration of each ramp was 120 s.
  • the shear rate jump test held a constant shear rate of 100 1 /s for 60 s then jumped to 0.1 1 /s for 60 s.
  • the strain sweep varied the strain from 0.5% to 1000% at an angular velocity of 1 1 /s over duration of approximately 450 s.
  • the frequency sweep varied the frequency from 0.1 1 /s to 600 1 /s at a strain of 1 % over duration of approximately 500 s.
  • a shear rate ramp varies the shear rate, y, acting on the material over several orders of magnitude. As the shear rate is changed the resulting shear stress, ⁇ , is measured. In this case the materials are non-Newtonian and are fitted using the power law model,
  • the consistency index can be thought of in the typical usage of the word consistency, that is a material can have a thick (large K value) or thin (small K value) consistency.
  • the behavior index gives a measure of how shear thinning or thickening a fluid is. If the behavior index is less than 1 then fluid is shear thinning and if greater than 1 , shear thickening. The further away from 1 the index is the more prevalent the type of behavior. If the index is 1 then the material is considered Newtonian.
  • the consistency index is the height of the curve and the behavior index is the slope of the curve.
  • Fluids which are known to have some structure are often subjected to a shear rate jump test.
  • a shear rate jump test is conducted by changing the shear rate by a relatively large amount and noting the response of the fluid.
  • the shear rate ramp and shear rate jump differ in that a ramp gradually changes the shear rate whereas the jump changes the shear rate by several orders of magnitude instantaneously.
  • This test is useful in identifying any hysteresis or thixotropic behavior.
  • Hysteresis occurs when the present viscosity measurement is influenced by the shear rate history of the fluid.
  • Thixotropy occurs when the viscosity changes in time at a constant shear rate.
  • the Maxwell model uses a spring and dashpot in series to describe a viscoelastic fluid, as shown in Fig. 1 .
  • a viscoelastic fluid has an elastic response to stress denoted as the storage modulus, G', and a viscous response to stress denoted as the loss modulus, G".
  • G' storage modulus
  • G" loss modulus
  • the strength of the spring or the viscosity of the fluid can dictate how the system will respond when stressed. For example, if the spring is weak and the viscosity of the fluid is high then when force is applied the spring will easily stretch and the dominant resistance will come from the dashpot moving through the highly viscous fluid.
  • a strain sweep varies the amount of strain on the fluid across several orders of magnitude while keeping the angular velocity of the spindle constant.
  • a strain sweep would be analogous to oscillating the spring to different lengths but at a constant speed.
  • the purpose of performing an oscillatory strain sweep is to identify the linear viscoelastic (LVE) region. Within this region the elastic and viscous components react to the stress applied. Once a specific strain is reached then the storage modulus, or elastic component, begin to decrease in magnitude. Again relating to the example the amount of strain outside the linear viscoelastic region would be like having the spring fully stretched so that there is no longer any elastic response.
  • a frequency sweep varies the amount of angular velocity, or shear rate
  • the appropriate amount of strain corresponds to the linear viscoelastic region.
  • composition (IC) formulated in accordance with Table 1 in comparison to several
  • CF1 vinyl acetate homopolymer emulsion
  • CF2 CF2
  • CF4 latex-type joint compound
  • CF5 polyurethane adhesive
  • Fig. 2 reports viscosity values measured during the shear rate ramp (left)
  • Fig. 3A reports data on storage and loss modulus obtained during the
  • the hysteresis area was calculated by taking
  • Fig. 5 reports storage and loss modulus values collected during the strain sweep test corresponding to the linear viscoelastic region (Table 1 ), while Fig. 6
  • both CF4 and CF5 by maintaining a steady viscosity within 15 seconds of the rapid change in shear rate.
  • CF4 and VF5 show both a response to the rapid change in shear but then also have a continuous increase in viscosity for at least 60 s afterwards. This means that IC recovers its full viscosity much more rapidly than the other two highly viscous adhesives.
  • the strain sweep test characterizes the materials according to the stress released through elasticity (storage modulus) and viscous dissipation (loss
  • CF1 , CF2, and CF3 (first group) all have low values for both the storage and loss modulus compared to CF4 and CF5 (second group).
  • IC has high storage modulus similar to the second group, but a low loss modulus similar to the first group.
  • the frequency sweep shows that IC has a storage modulus between the highly elastic and very low elastic fluids but has a loss modulus similar to the low viscosity group.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Dispersion Chemistry (AREA)
  • Building Environments (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Finishing Walls (AREA)

Abstract

L'invention concerne une composition adhésive appropriée pour renforcer des joints de panneau dans la construction, la composition adhésive comprenant un liant polymère, une charge et un épaississant, le liant étant choisi parmi des polymères d'acide acrylique, les copolymères d'acide acrylique, les alkydes, les polyuréthanes, les polyesters, les époxydes et des combinaisons correspondantes et la viscosité de la composition se situant dans une plage de 100 à 200 Unités Bradbender et la densité étant située dans la plage d'environ 7,5 lb/gal à environ 10 lb/gal. L'invention concerne également des procédés d'utilisation de la composition adhésive dans assemblage de paroi.
EP15828800.1A 2014-12-24 2015-12-08 Adhesif remplissage d'ecart Active EP3237567B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15828800T PL3237567T3 (pl) 2014-12-24 2015-12-08 Klej wykończeniowy do spoin

Applications Claiming Priority (3)

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US201462096758P 2014-12-24 2014-12-24
US14/840,288 US9683143B2 (en) 2014-12-24 2015-08-31 Joint finishing adhesive
PCT/US2015/064374 WO2016105925A1 (fr) 2014-12-24 2015-12-08 Adhésif de finition de joints

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EP3237567A1 true EP3237567A1 (fr) 2017-11-01
EP3237567B1 EP3237567B1 (fr) 2021-09-22

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EP (1) EP3237567B1 (fr)
JP (1) JP6705819B2 (fr)
KR (1) KR102161622B1 (fr)
CN (1) CN107001887B (fr)
AU (1) AU2015370067B2 (fr)
BR (1) BR112017012920B1 (fr)
CA (1) CA2971854C (fr)
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WO2018222227A1 (fr) * 2017-06-01 2018-12-06 Mission V Sports, LLC Système de revêtement de sol comprenant un matériau présentant des propriétés dilatantes, et procédé d'installation d'un système de revêtement de sol d'athlétisme
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CN107417159A (zh) * 2017-08-28 2017-12-01 北京中砼冠疆新航建材有限公司 一种用于预拌高强混凝土的黏度调节剂
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CN108868828B (zh) * 2018-07-11 2019-10-22 河南理工大学 一种用于破碎煤体加固的界面粘结剂及其制备方法
KR102188402B1 (ko) * 2018-11-23 2020-12-08 주식회사 엘엠에스 접착시트 및 이를 포함하는 접착소재
CN109868098A (zh) * 2019-01-21 2019-06-11 桐城市桐佳装饰有限公司 一种家庭卫生间用防水胶制备方法
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Also Published As

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JP6705819B2 (ja) 2020-06-03
RU2709879C2 (ru) 2019-12-23
EP3237567B1 (fr) 2021-09-22
LT3237567T (lt) 2022-02-10
RU2017124159A (ru) 2019-01-24
WO2016105925A1 (fr) 2016-06-30
SA517381631B1 (ar) 2021-12-08
BR112017012920B1 (pt) 2022-07-05
CN107001887A (zh) 2017-08-01
KR102161622B1 (ko) 2020-10-06
MY184179A (en) 2021-03-24
CO2017006768A2 (es) 2017-09-20
US9683143B2 (en) 2017-06-20
BR112017012920A2 (pt) 2018-03-13
KR20170101223A (ko) 2017-09-05
US20160186019A1 (en) 2016-06-30
CN107001887B (zh) 2020-01-10
NZ733530A (en) 2024-05-31
MX2017007202A (es) 2017-08-28
CL2017001696A1 (es) 2018-02-02
PL3237567T3 (pl) 2021-12-27
CA2971854A1 (fr) 2016-06-30
RU2017124159A3 (fr) 2019-04-24
PE20170838A1 (es) 2017-07-04
AU2015370067A1 (en) 2017-07-27
AU2015370067B2 (en) 2019-09-12
UA120952C2 (uk) 2020-03-10
CA2971854C (fr) 2023-09-19
JP2018505238A (ja) 2018-02-22

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